Scoring-machine.



S. T. HOBBS.

SGORING MACHINE.

APPLIUATION FILED JULYZY, 1912.

1,095,207. Patented May 5, 1914.

fnven fo r @AWM I fo'rney 'NITED STATES PATENT OFFICE.

SAMUEL T. HOBBS, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO HOBBS MANUFAC- TURING COMPANY, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSA- CH'U'SETTS.

Specification of Letters Patent.

SCORING-MACHINE.

Patented May 5, 1914.

Application filed July 27,1912. Serial No. 711,791.

Scoring-Machines, of which the following is a specification, accompanied by drawings forming a part of the same.

My present invention relates of scoring machines which are used for scoring cardboard or similar substances, comprising a table for supporting the work, a bed roll parallel with the table, and a series of rotating scoring disks or cutters held upon a cutter bar to cooperate with the bed roll in scoring the work as it passes between the scoring disks and the bed roll. In front of and adjacent to the scoring disks is a transverse strip, usually of sheet steel, called an apron which is adapted to yieldingly press upon the work as it is advanced along the table. The cutter bar in machines of this class is commonly provided with two sets of scoring disks held upon opposite edges of the cutter bar. Either of the two sets of scoring disks can be brought into action at will by rotating the cutter bar one half a revolution.

The objects of my present invention are to provide automatic means for moving the apron out of the path of the scoring disks as the cutter bar is rotated and for holding the apron in its normalposition when the cutter bar is in its operative position; also to provide means for rotating and securing the cutter bar independently of its vertical position above the bed roll. These objects, among others, I accomplish by the construction and arrangement of parts as hereinafter described, the novel features being pointed out in the annexed claims.

In the accompanying drawings, Figure 1 represents a side elevation of a scoring machine embodying my invention. Fig. 2 1s a front view. artl in section showin a or-' tion of the bed roll, rotatable cutter bar and one of the boxes in which the cutter bar is journaled. Fig. 3 is a side elevation in vertical sectional view of the rotatable cutter bar and bed roll and showing the apron operating mechanism.

Similar reference characters refer to similar parts in the different figures.

Referring to the accompanying drawings,

1 represents a portion of the framework on which the machine is supported. Held upon the framework is a horizontal table 2 upon which the work is supported as it is fed forward to the scoring mechanism, which consist of a bed roll 3 and a series of scoring disks or cutters 4 held in brackets 5 which are laterally adjustable upon one edge of a cutter bar 6. The scoring disks 4 are spaced to that class upon the cutter bar according to the require ments of the work, and when other scored lines with different spacing is required upon the same sheet of cardboard, other scoring disks 7 are similarly attached to the opposite edge of the cutter bar. The cutter bar,

therefore, is provided with two separate sets of scoring disks which enables the card board to be scored at different spaces by simply rotating the cutter bar one half a revolution, thereby carrying the scoring disks 4; to the upper side of the bar and the scoring disks 7 to the under side of the bar in position to cooperate with thebed roll 3.

The cutter bar is ournaled at each end in boxes 8 and 9 whichare vertically adjustable in verticalv ways formed in the housings 10 and 11. As the scoring disks are reduced in diameter by continued wear or grinding, the journal boxes supporting the cutter bar are vertically adjusted to bring the scoring disks into proper operative relation to the periphery of the bed roll 3. The boxes are also vertically adjusted in order to regulate the depth of the cut made by, the scoring disks in the cardboard. The method of adjusting the boxes forms no part of my present invention but, in the present instance, it consists of adjustable screws for supporting the boxes, one of which is shown at 12, Fig. 2, by which the boxes are crowded upward against shims of the proper thickness inserted between the boxes and the housings, one of which is shown at 13, Fig. 2.

Attached to the end of one of the gudgeons 14 of the cutter bar is a lever handle 15, by which the cutter bar is rotated to bring either set of scoring disks into operative position.

Attached to, or, as in the present instance, integral with the journal boxes 9 is a plate 16 having raised from the face thereof a semicircular rib 17. The plate 16 at each end of the semicircular rib 17 is provided with a hole, one of which is shown at 18, adapted to receive a retaining pin 19 car ried upon the end of a lever 20 pivotally supported on the handle 15. The lever 20 enables the retaining pin 19 to be withdrawn from the holes 18 by pressing the end of the lever 20 against the handle 15. The release of the retaining pin allows the cutter bar to be rotated one half a revolution, when the retaining pin will be carried into the hole 18 at the opposite end of the rib 17 by means of a spring, not shown, inserted between the end of the lever 20 and the handle 15.

Stops 21, 21 are provided on the outer side of the box 9 to limit the movement. of the handle 15 in either direction. By connecting the plate 16 with the vertically adjustable box 9, the stops 21, holes 18 and rib 17 are always maintained in the same vertical relation to the cutter bar, so that an adjustment of the latter by means of the screws 12 does not necessitate an independent adjustment of the locking mechanism inasmuch as the locking plate 16 moves with the box and the cutter bar.

As the sheet of cardboard is moved forward on the table 2 between the bed roll. 3 and the scoring disks, it is pressed downward by an apron 22 extending transversely across the bed, with its ends attached to the lower ends of bent levers 23, 24. The levers 23 and 24 are pivoted at 25 and 26 to the upper ends of brackets 27 and 28 extending upwardly from the housings 10 and 11 so as to bring the pivots of the bent levers in a plane above the cutter bar 6. The bent levers 23 and 24 are pivotally connected with theends of the cutter bar 6 near one of its edges by means of links, one of which is shown at 29, Fig. 3. As the cutter bar 6 is rotated one half a revolution in the direction of the arrow 30. from the position shown in Fig. 3, the link 29 will serve as a thrust bar to move the apron 22 toward the left and out of the path of the scoring disks 4. Moving the cutter bar 6 one haIf a revolution from the position shown in Fig. '3 will bring the link 29 into the position in dicated by the broken lines 31, thereby restoring the bent levers 23 and 24 and apron 22 carried thereby to their normal position.

In orderto shift the cutter bar 6 for the operation of the scored disks on either edge of the cutter bar, it is only necessary to move the handle 15 to carry the retaining pin 19 from'one of the holes 18 to the other, the

apron 22 in the meantime being moved out of and into operative position automatically.

I claim 1. In a scoring machine, the combination with arotatable cutter bar, of an apron pivotally connected with the fixed framework of the machine, and means for operatively connecting said apron with the rotatable cutter bar, whereby the rotation of the latter will automatically swing the apron out of the path of the cutter bar.

2. In a scoring machine, the combination with a rotatable cutter bar, of a pivoted lever, an apron supported at the lower free end of said lever, and a link pivotally connecting said cutter bar with said lever.

3. In a scoring machine, the combination with a rotatable cutter bar, of a fixed bracket extending upwardly from each side of the machine, levers pivotally supported by said bracket in a plane above the cutter bar, an apron attached to the lower free ends of said levers, and a pair of links pivotally connecting said cutter bar with said levers.

4. In a scoring machine, a fixed framework having housings provided with vertical ways, journal boxes vertically adjustable in said ways, a, rotatable cutter bar journaled in said boxes, :1. plate carried by one of said journal boxes and extending outside its housing, a lever handle rigidly attached to said cutter bar, a retaining pin held by said lever handle and adapted to engage holes in said plate at the end of: a. semirotation of said cutter bar, and a pair of stops projecting from said plate whereby the movement of said lever handle is limited.

5. In a scoring machine, a fixed framework having housings provided with vertical ways, journal boxes slidable in said wavs. a cutter bar journaled in said boxes, a. lever handle rigidly attached'to said cutter bar. a retaining pin carried by said lever handle. and a plate attached to one of said journal boxes and extending beyond its housing,

said plate having holes for the reception of said retaining pin at each end of a. semirotation of said cutter bar.

Dated this 23rd day of July 1912.

SAMUEL T. HOBBS. \Vitnesses:

RUEUs B. FOWLER, PENELOPE CoMBERBAcn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. G. 

